Question

解比例:25:7=X:35 514:35=57:X 23:X=12:14

Answer 1

25:7=X:35

7X=35×25

7X=875

X=875÷7

X=125

514:35=57:X

514X=35*57

514X=1995

23:X=12:14

12X=23×14

12X=322

X=322/12

X=161/6